CN117484214A - Flat thin high-precision hydrostatic turntable - Google Patents
Flat thin high-precision hydrostatic turntable Download PDFInfo
- Publication number
- CN117484214A CN117484214A CN202311761582.0A CN202311761582A CN117484214A CN 117484214 A CN117484214 A CN 117484214A CN 202311761582 A CN202311761582 A CN 202311761582A CN 117484214 A CN117484214 A CN 117484214A
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- turntable
- conical
- oil
- disc
- fixed disc
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- 230000002706 hydrostatic effect Effects 0.000 title claims abstract description 18
- 125000006850 spacer group Chemical group 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 230000002093 peripheral effect Effects 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 8
- 230000035939 shock Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 74
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
- B23Q1/38—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members using fluid bearings or fluid cushion supports
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machine Tool Units (AREA)
Abstract
A flat thin high-precision hydrostatic turntable relates to the technical field of precision manufacturing equipment. The turntable comprises a turntable fixed disc, wherein an upper conical cavity and a lower conical cavity are arranged in the turntable fixed disc, a conical upper movable disc is arranged in the upper conical cavity in a matched manner, a conical lower movable disc is arranged in the lower conical cavity in a matched manner, the upper movable disc and the lower movable disc are connected into a whole through an adjusting spacer arranged in a spacer cavity, and the adjusting spacer is in clearance fit with the turntable fixed disc; the bottom end of the turntable fixed disc is provided with a driver in transmission connection with the lower movable disc, and the upper end of the turntable fixed disc is rotatably provided with a working table plate connected with the upper movable disc; the bearing surfaces at the two ends of the movable disc are designed to be conical, the conical bearing surfaces replace the radial and axial double bearing surfaces of the movable disc in the prior art, and the conical surfaces have larger bearing capacity relative to the axial and radial double bearing surfaces, so that the size design of the movable disc is smaller and flatter under the same bearing requirement.
Description
Technical Field
The invention relates to the technical field of precision manufacturing equipment, in particular to a flat and thin high-precision hydrostatic turntable.
Background
The hydrostatic turntable adopts a pressure oil film as a working medium, has the characteristic of high bearing rigidity, has no abrasion between friction pairs, and has extremely high rotation precision and positioning precision.
However, in the prior art, the turntable structure is shown in fig. 11 and 12, wherein the first movable disk is in a cylindrical structure, and the axial and radial stress surfaces of the movable disk are in a separated structure, so that the top and bottom of the fixed disk bear larger pressure, and the thicknesses of the top and bottom of the fixed disk are required to be thickened to ensure bearing capacity, so that the axial dimension of the turntable is larger; the upper part of the structure of the second movable disk is a cone, the lower part of the cone is a cylinder, and the thickness of the bottom of the fixed disk is required to be increased, so that the axial size of the turntable is increased, and the overall size of the product is larger.
In addition, the oil supply channels of the existing turntable pressure are tortuous and winding, the lengths of the oil channels are different, the oil outlet pressure is inconsistent, the pressure difference of the peripheral wall of the movable disc is large, the rotating precision and stability are affected, the oil pressure is controlled in a small-hole throttling mode in the field, the small-hole structure is difficult to process, the precision is unreliable, the product cost is increased, and meanwhile, effective control of the oil pressure cannot be achieved.
Disclosure of Invention
The invention aims to provide a flat and thin high-precision hydrostatic turntable which can effectively solve the problems in the background technology.
The technical scheme for achieving the purpose is as follows: a flat thin high-precision hydrostatic turntable comprises a turntable fixed disc, wherein an upper conical cavity with an upward large opening end and a lower conical cavity with a downward large opening end are arranged in the turntable fixed disc, the upper conical cavity and the lower conical cavity are communicated with each other through a spacer cavity, a conical upper movable disc is arranged in the upper conical cavity in a matched manner, a conical lower movable disc is arranged in the lower conical cavity in a matched manner, the upper movable disc and the lower movable disc are connected into a whole through an adjusting spacer arranged in the spacer cavity, and the adjusting spacer is in clearance fit with the turntable fixed disc;
the bottom end of the turntable fixed disc is provided with a driver in transmission connection with the lower movable disc, and the upper end of the turntable fixed disc is rotatably provided with a working table plate connected with the upper movable disc;
the rotary table is characterized in that a plurality of pressure chambers are uniformly distributed on the peripheral wall of the upper conical cavity of the rotary table fixed disc and the peripheral wall of the lower conical cavity of the rotary table fixed disc respectively, a main oil inlet is formed in the side wall of the rotary table fixed disc, the pressure chambers are communicated with the main oil inlet through throttle valves respectively, oil return grooves which are arranged at intervals corresponding to the pressure chambers are formed in two sides of the pressure chambers respectively, the oil return grooves in the peripheral walls of the upper conical cavity and the lower conical cavity are communicated with the rotary table fixed disc through gaps between a shock pad, an oil return opening is formed in the side wall of the drive, and the oil return grooves in the side wall of the lower conical cavity are communicated with the oil return opening through oil return collecting grooves which are formed in the top of the drive.
Further, an axial hole is formed among the working table plate, the upper movable plate, the adjusting spacer and the lower movable plate, and a positioning shaft for connecting the working table plate, the upper movable plate, the adjusting spacer and the lower movable plate into a whole is in interference fit in the axial hole.
Further, a dust-proof ring covering the gap between the turntable fixed disk and the working table plate is connected to the peripheral wall of the working table plate.
Further, mounting planes for mounting the throttle valve are uniformly distributed on the peripheral wall of the turntable fixed disk, central holes which do not penetrate through the side wall of the turntable fixed disk are formed in the centers of the mounting planes, communication holes are formed between every two adjacent central holes, so that all the central holes form a communication oil duct, the communication oil duct is simultaneously communicated with a main oil inlet, oil distribution holes which are in one-to-one correspondence with the pressure chambers are respectively formed in the mounting planes, and the oil distribution holes are communicated with the corresponding pressure chambers;
the throttle valve is arranged on the installation plane, the inlet end of the throttle valve extends into the corresponding central hole, and the outlet end of the throttle valve is communicated with the oil distribution hole on the corresponding installation plane.
Further, each pressure chamber and the corresponding communicated oil distribution hole in the upper conical cavity are rotationally symmetrical along the circumferential direction of the turntable fixed disc, and each pressure chamber and the corresponding communicated oil distribution hole in the lower conical cavity are rotationally symmetrical along the circumferential direction of the turntable fixed disc.
Further, the throttle valve comprises a valve body, a throttle valve cover which is hermetically installed on the installation plane of the turntable fixed disc is integrally arranged on the valve body, a cylindrical valve cavity is arranged in the valve body, a valve core is slidably arranged in the valve cavity, the valve core comprises a conical section, a diameter-reducing section and a diameter-expanding section which are sequentially arranged from front to back, the conical section comprises a conical part at the front end and a round part at the rear end, the front end of the valve body is provided with an opening as an oil inlet, a conical sealing surface matched with the conical part of the conical section is arranged in the front port, an annular oil groove is formed between the diameter-reducing section and the valve body, the diameter-expanding section of the valve core is in sliding sealing fit with the valve body and extends out of the valve body backwards, an adjusting nut which is in threaded connection with the extending end of the valve core is fixedly connected to the tail end of the valve body, and a hexagonal hole is formed at the tail end of the valve core;
the circular part of the conical section is uniformly distributed with oil passing grooves for communicating the oil inlet at the front end of the valve body and the annular oil groove along the circumferential direction, L-shaped holes for communicating the annular oil passage are formed between the throttle valve cover and the valve body, and the outlet ends of the L-shaped holes are communicated with corresponding oil distributing holes on the mounting plane in a involution manner.
Further, the driver comprises a base with an opening at the upper end, a driving motor is arranged in the base, and the output end of the driving motor is in transmission connection with the lower movable disk.
Further, the upper port of the base is provided with a circle of oil return collecting groove, a gap between the lower conical cavity and the lower movable disc is downwards aligned with the upper port of the oil return collecting groove, and the oil return port is communicated with the oil return collecting groove.
Further, the driving motor adopts a frameless torque motor, the frameless torque motor comprises a stator arranged in a base, a rotor is rotatably arranged in the stator, a rotor shaft is arranged in the rotor in a transmission manner, and the rotor shaft is fixedly connected with a lower movable disc.
Further, a grating encoder is connected to the tail end of the rotor shaft.
The invention has the beneficial effects that:
the bearing surfaces at the two ends of the movable disc are designed to be conical, the conical bearing surfaces replace the radial and axial double bearing surfaces of the movable disc in the prior art, and the conical surfaces have larger bearing capacity relative to the axial and radial double bearing surfaces, so that the size design of the movable disc is smaller and flatter under the same bearing requirement.
According to the invention, the throttle valve is arranged between the oil inlet and the oil distribution hole, and the pressure of each pressure chamber can be controlled through the throttle valve, so that the pressures of each pressure chamber of the upper conical cavity and each pressure chamber of the lower conical cavity are approximately balanced, and the technical problems of low rotation precision and poor stability caused by uneven circumferential stress of the movable plate are avoided.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a transverse cross-sectional view of the present invention;
FIG. 4 is an axial cross-sectional view of the present invention;
FIG. 5 is a cross-sectional view of the pressure chamber in the upper conical cavity corresponding to the oil hole;
FIG. 6 is a cross-sectional view of the pressure chamber in the lower conical cavity corresponding to the oil hole;
FIG. 7 is a partial schematic view of the present invention;
FIG. 8 is a front view of a throttle valve;
FIG. 9 is a cross-sectional view taken along the direction A-A in FIG. 8;
FIG. 10 is a perspective view of the valve cartridge;
FIG. 11 is a first schematic structural view of a conventional turntable;
fig. 12 is a second structural schematic diagram of a conventional turntable.
Detailed Description
As shown in fig. 1-10, the invention discloses a flat thin high-precision hydrostatic turntable, which comprises a turntable fixed disc 1, wherein an upper conical cavity 1.1 with an upward large opening end and a lower conical cavity 1.2 with a downward large opening end are arranged in the turntable fixed disc 1, the upper conical cavity 1.1 and the lower conical cavity 1.2 are communicated with each other through a spacer cavity 1.11, a conical upper movable disc 2 is arranged in the upper conical cavity 1.1 in a matched manner, a conical lower movable disc 3 is arranged in the lower conical cavity 1.2 in a matched manner, and the upper movable disc 2 and the lower movable disc 3 are connected into a whole through an adjusting spacer 4 arranged in the spacer cavity 1.11.
The bottom of the turntable fixed disk 1 is provided with a driver 5 in transmission connection with the lower movable disk 3, the upper end of the turntable fixed disk 1 is rotatably provided with a working table plate 6 connected with the upper movable disk 2, and the peripheral wall of the working table plate 6 is connected with a dust-proof ring 7 covering the gap position between the turntable fixed disk 1 and the working table plate 6.
As a further explanation of the present embodiment, by changing the adjusting spacers 4 with different thicknesses, the size of the gap between the upper movable plate 2 and the upper conical cavity 1.1 and the size of the gap between the lower movable plate 3 and the lower conical cavity 1.2 in a floating state can be adjusted; in order to facilitate the replacement of the adjusting spacer 4, an axial hole 8 is arranged among the working table plate 6, the upper moving plate 2, the adjusting spacer 4 and the lower moving plate 3, a positioning shaft 9 for connecting the working table plate 6, the upper moving plate 2, the adjusting spacer 4 and the lower moving plate 3 into a whole is in interference fit in the axial hole 8, and the adjusting spacer 4 can be replaced by taking out the positioning shaft 9.
The periphery walls of the upper conical cavity 1.1 and the periphery walls of the lower conical cavity 1.2 of the turntable fixed disk 1 are respectively and uniformly provided with a plurality of pressure chambers 1.3, oil return grooves 1.10 which are arranged at intervals with the corresponding pressure chambers 1.3 are respectively arranged on two sides of each pressure chamber 1.3, and the adjusting spacer 4 is in clearance fit with the turntable fixed disk 1, so that the oil return grooves 1.10 on the periphery walls of the upper conical cavity 1.1 and the lower conical cavity 1.2 are mutually communicated.
Be provided with main oil inlet 1.4 on the lateral wall of revolving stage fixed disk 1, pressure chamber 1.3 communicates main oil inlet 1.4 through choke valve 10 respectively, the equipartition has the mounting plane 1.5 that is used for installing choke valve 10 on the periphery wall of revolving stage fixed disk 1, and the center of mounting plane 1.5 is provided with the centre bore 1.6 that does not run through the revolving stage fixed disk 1 lateral wall, has all seted up communication hole 1.8 between two adjacent centre bores 1.6, makes and forms the intercommunication oil duct between all centre bores 1.6, and the intercommunication oil duct communicates with main oil inlet 1.4 simultaneously.
The mounting plane 1.5 is also provided with oil distribution holes 1.9 which are in one-to-one correspondence with the pressure oil chambers 1.3, and the oil distribution holes 1.9 are communicated with the corresponding pressure oil chambers 1.3; the pressure oil cavities 1.3 and the correspondingly communicated oil distribution holes 1.3 in the upper conical cavity 1.1 are rotationally symmetrical along the circumferential direction of the turntable fixed disk 1, and the pressure oil cavities 1.3 and the correspondingly communicated oil distribution holes 1.3 in the lower conical cavity 1.2 are rotationally symmetrical along the circumferential direction of the turntable fixed disk 1.
The throttle valve 10 is respectively arranged on a plane 1.5, the inlet end of the throttle valve extends into a corresponding central hole 1.6, the throttle valve 10 comprises a valve body 10.1, a throttle cover 10.2 which is arranged on the corresponding installation plane 1.5 in a sealing way is integrally arranged on the valve body 10.1, a cylindrical valve cavity is arranged in the valve body 10.1, a valve core 10.3 is arranged in the cylindrical valve cavity in a sliding way, the valve core 10.3 comprises a conical section 10.31, a diameter-reducing section 10.32 and an expanded diameter section 10.33 which are sequentially arranged from front to back, the conical section 10.31 comprises a conical part at the front end and a round part at the rear end, the front end of the valve body 10.3 is provided with an opening as an oil inlet, a conical sealing surface 10.11 which is matched with the conical part of the conical section 10.31 is arranged in the front end, an annular oil groove 10.4 is formed between the diameter-reducing section 10.32 and the valve body 10.1, the expanded diameter-reducing section 10.33 of the valve core 10.3 is in sliding and the valve body 10.1 in a sealing way, the valve core 10.3 is fixedly connected with the tail end of the valve body 10.1, the valve core 10.3 is fixedly connected with a six-end adjusting nut which is connected with the tail end of the valve core 10.3 in a threaded way, and the valve core is arranged.
The circular part of the conical section 10.31 is uniformly distributed with oil passing grooves 10.311 used for communicating the oil inlet at the front end of the valve body 10.1 and the annular oil groove 10.4 along the circumferential direction, L-shaped holes 10.6 used for communicating the annular oil groove 10.4 are arranged between the throttle valve cover 10.2 and the valve body 10.1, and the outlet end of the L-shaped holes 10.6 are communicated with corresponding oil holes 1.9 on the mounting plane 1.5 in an involution manner.
The driver 5 comprises a base 5.1 with an opening at the upper end, a circle of oil return collecting grooves 5.3 are arranged at the upper port of the base 5.1, a gap between the lower conical cavity 1.2 and the lower moving disc 3 is downwards aligned with the upper port of the oil return collecting grooves 5.3, and an oil return port 5.4 communicated with the oil return collecting grooves 5.3 is arranged on the base 5.1.
The pedestal 5.1 is internally provided with a frameless torque motor 5.2, the frameless torque motor 5.2 comprises a stator 5.21 arranged in the pedestal 5.1, a rotor 5.22 is rotatably arranged in the stator 5.21, a rotor shaft 5.23 is arranged in the rotor 5.22 in a transmission way, the rotor shaft 5.23 is fixedly connected with the lower movable disk 3, and the tail end of the rotor shaft 5.23 is connected with a grating encoder 5.24.
The working process of the invention comprises the following steps: the frameless torque motor 5 drives the lower movable disc 3, the adjusting spacer 4, the upper movable disc 2 and the working table plate 6 to rotate through the rotor shaft 5.23, meanwhile, hydraulic oil is introduced into the main oil inlet 1.4, enters each throttle valve 10 through a communication oil passage formed by communication between central holes, then sequentially enters corresponding pressure chambers 1.3 through an annular oil groove 10.4 and an L-shaped hole 10.6 of the throttle valve 10 and an oil distribution hole 1.9 on an installation plane 1.5, pushes the lower movable disc 3 and the upper movable disc 2 to form suspension, and hydraulic oil overflowed in each pressure chamber 1.3 enters the oil return collecting groove 5.3 through an oil return groove 1.10 on the peripheral wall of the upper conical cavity 1.1, a gap between the adjusting spacer 4 and the rotary table fixed disc 1 and an oil return groove 1.10 on the peripheral wall of the lower conical cavity 1.2 and finally is output through the oil return holes 5.4.
As a further explanation of this embodiment, the oil outlet pressure of the throttle valve is adjustable, and when the oil outlet pressure of the throttle valve is adjusted, the valve core 10.3 is rotated, so that the valve core 10.3 forms an axial displacement relative to the conical sealing surface 10.11 at the front end of the valve body 10.1, and the distance between the conical section 10.31 and the conical sealing surface 10.11 is adjusted, thereby adjusting the oil outlet pressure of the throttle valve 10, and making the pressures of the pressure chambers of the upper conical cavity 1.1 and the pressure chambers of the lower conical cavity 1.2 approximately uniform.
Claims (10)
1. A flat thin high-precision hydrostatic turntable comprises a turntable fixed disc, wherein an upper conical cavity with an upward large opening end and a lower conical cavity with a downward large opening end are arranged in the turntable fixed disc, the upper conical cavity and the lower conical cavity are communicated with each other through a spacer cavity, a conical upper movable disc is arranged in the upper conical cavity in a matched manner, a conical lower movable disc is arranged in the lower conical cavity in a matched manner, the upper movable disc and the lower movable disc are connected into a whole through an adjusting spacer arranged in the spacer cavity, and the adjusting spacer is in clearance fit with the turntable fixed disc;
the bottom end of the turntable fixed disc is provided with a driver in transmission connection with the lower movable disc, and the upper end of the turntable fixed disc is rotatably provided with a working table plate connected with the upper movable disc;
the rotary table is characterized in that a plurality of pressure chambers are uniformly distributed on the peripheral wall of the upper conical cavity of the rotary table fixed disc and the peripheral wall of the lower conical cavity of the rotary table fixed disc respectively, a main oil inlet is formed in the side wall of the rotary table fixed disc, the pressure chambers are communicated with the main oil inlet through throttle valves respectively, oil return grooves which are arranged at intervals corresponding to the pressure chambers are formed in two sides of the pressure chambers respectively, the oil return grooves in the peripheral walls of the upper conical cavity and the lower conical cavity are communicated with the rotary table fixed disc through gaps between a shock pad, an oil return opening is formed in the side wall of the drive, and the oil return grooves in the side wall of the lower conical cavity are communicated with the oil return opening through oil return collecting grooves which are formed in the top of the drive.
2. A flat thin high precision hydrostatic turntable as claimed in claim 1, wherein: an axial hole is formed among the working table plate, the upper movable disc, the adjusting spacer and the lower movable disc, and a positioning shaft for connecting the working table plate, the upper movable disc, the adjusting spacer and the lower movable disc into a whole is in interference fit with the axial hole.
3. A flat thin high precision hydrostatic turntable as claimed in claim 1, wherein: the circumference wall of the working table plate is connected with a dust-proof ring which covers the gap position between the turntable fixed disc and the working table plate.
4. A flat thin high precision hydrostatic turntable as claimed in claim 1, wherein: the rotary table fixed disc is characterized in that mounting planes for mounting the throttle valves are uniformly distributed on the peripheral wall of the rotary table fixed disc, central holes which do not penetrate through the side wall of the rotary table fixed disc are formed in the center of each mounting plane, communication holes are formed between every two adjacent central holes, so that all the central holes form a communication oil duct, the communication oil duct is simultaneously communicated with a main oil inlet, oil distribution holes which are in one-to-one correspondence with the pressure chambers are also respectively formed in each mounting plane, and the oil distribution holes are communicated with the corresponding pressure chambers;
the throttle valve is arranged on the installation plane, the inlet end of the throttle valve extends into the corresponding central hole, and the outlet end of the throttle valve is communicated with the oil distribution hole on the corresponding installation plane.
5. A flat thin high precision hydrostatic turntable as claimed in claim 4, wherein: each pressure chamber and the corresponding communicated oil distribution hole in the upper conical cavity are rotationally symmetrical along the circumferential direction of the turntable fixed disc, and each pressure chamber and the corresponding communicated oil distribution hole in the lower conical cavity are rotationally symmetrical along the circumferential direction of the turntable fixed disc.
6. A flat thin high precision hydrostatic turntable as claimed in claim 4, wherein: the throttle valve comprises a valve body, a throttle valve cover which is hermetically installed on the installation plane of a turntable fixed disk is integrally arranged on the valve body, a cylindrical valve cavity is arranged in the valve body, a valve core is slidably arranged in the valve cavity, the valve core comprises a conical section, a diameter-reducing section and a diameter-expanding section which are sequentially arranged from front to back, the conical section comprises a conical part at the front end and a round part at the rear end, the front end of the valve body is provided with an opening serving as an oil inlet, a conical sealing surface matched with the conical part of the conical section is arranged in the front end, an annular oil groove is formed between the diameter-reducing section and the valve body, the diameter-expanding section of the valve core is in sliding sealing fit with the valve body and extends out of the valve body backwards, the tail end of the valve body is fixedly connected with an adjusting nut which is in threaded connection with the extending end of the valve core, and the tail end of the valve core is provided with a hexagonal hole;
the circular part of the conical section is uniformly distributed with oil passing grooves for communicating the oil inlet at the front end of the valve body and the annular oil groove along the circumferential direction, L-shaped holes for communicating the annular oil passage are formed between the throttle valve cover and the valve body, and the outlet ends of the L-shaped holes are communicated with corresponding oil distributing holes on the mounting plane in a involution manner.
7. A flat thin high precision hydrostatic turntable as claimed in claim 1, wherein: the driver comprises a base with an opening at the upper end, a driving motor is arranged in the base, and the output end of the driving motor is in transmission connection with the lower movable disk.
8. A flat thin high precision hydrostatic turntable as claimed in claim 7, wherein: the upper port of the base is provided with a circle of oil return collecting groove, a gap between the lower conical cavity and the lower movable disk is downwards aligned with the upper port of the oil return collecting groove, and the oil return port is communicated with the oil return collecting groove.
9. A flat thin high precision hydrostatic turntable as claimed in claim 8, wherein: the driving motor adopts a frameless torque motor, the frameless torque motor comprises a stator arranged in a base, a rotor is rotatably arranged in the stator, a rotor shaft is arranged in the rotor in a transmission manner, and the rotor shaft is fixedly connected with a lower movable disk.
10. A flat thin high precision hydrostatic turntable as claimed in claim 8, wherein: the tail end of the rotor shaft is connected with a grating encoder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311761582.0A CN117484214B (en) | 2023-12-20 | 2023-12-20 | Flat thin high-precision hydrostatic turntable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311761582.0A CN117484214B (en) | 2023-12-20 | 2023-12-20 | Flat thin high-precision hydrostatic turntable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117484214A true CN117484214A (en) | 2024-02-02 |
| CN117484214B CN117484214B (en) | 2024-06-25 |
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ID=89683162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311761582.0A Active CN117484214B (en) | 2023-12-20 | 2023-12-20 | Flat thin high-precision hydrostatic turntable |
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| Country | Link |
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| CN (1) | CN117484214B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4218142A1 (en) * | 1992-06-02 | 1993-12-23 | Amc Schou As Aarhus | Relative positioning of tool and workpiece in machine tool - uses fluid pressure and reduces it after attaining desired position between both parts |
| CN101994726A (en) * | 2010-11-29 | 2011-03-30 | 广西玉柴重工有限公司 | One-way throttle valve |
| CN103111855A (en) * | 2013-02-18 | 2013-05-22 | 哈尔滨工业大学 | Large-diameter-height-ratio ultra-precision hydrostatic pressure rotary table |
| CN208681151U (en) * | 2018-09-07 | 2019-04-02 | 哈尔滨理工大学 | A kind of hydrostatic support lubricating pad water cooling plant |
| CN110732887A (en) * | 2019-11-19 | 2020-01-31 | 哈尔滨工业大学 | ultra-precision hydrostatic pressure turntable |
| CN112025335A (en) * | 2020-08-10 | 2020-12-04 | 北京海普瑞森超精密技术有限公司 | Ultra-precise hydraulic servo turntable |
| CN115388178A (en) * | 2022-09-23 | 2022-11-25 | 江苏艾福泰克能源装备有限公司 | High-pressure throttle valve for oil exploitation |
| CN116175211A (en) * | 2023-04-06 | 2023-05-30 | 德阳凡瑞机电设备有限公司 | Rotary workbench for full static pressure vertical turning |
-
2023
- 2023-12-20 CN CN202311761582.0A patent/CN117484214B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4218142A1 (en) * | 1992-06-02 | 1993-12-23 | Amc Schou As Aarhus | Relative positioning of tool and workpiece in machine tool - uses fluid pressure and reduces it after attaining desired position between both parts |
| CN101994726A (en) * | 2010-11-29 | 2011-03-30 | 广西玉柴重工有限公司 | One-way throttle valve |
| CN103111855A (en) * | 2013-02-18 | 2013-05-22 | 哈尔滨工业大学 | Large-diameter-height-ratio ultra-precision hydrostatic pressure rotary table |
| CN208681151U (en) * | 2018-09-07 | 2019-04-02 | 哈尔滨理工大学 | A kind of hydrostatic support lubricating pad water cooling plant |
| CN110732887A (en) * | 2019-11-19 | 2020-01-31 | 哈尔滨工业大学 | ultra-precision hydrostatic pressure turntable |
| CN112025335A (en) * | 2020-08-10 | 2020-12-04 | 北京海普瑞森超精密技术有限公司 | Ultra-precise hydraulic servo turntable |
| CN115388178A (en) * | 2022-09-23 | 2022-11-25 | 江苏艾福泰克能源装备有限公司 | High-pressure throttle valve for oil exploitation |
| CN116175211A (en) * | 2023-04-06 | 2023-05-30 | 德阳凡瑞机电设备有限公司 | Rotary workbench for full static pressure vertical turning |
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| Publication number | Publication date |
|---|---|
| CN117484214B (en) | 2024-06-25 |
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